GPG commit signoff on WSL

I am using Pycharm with my environment setup on WSL and I've been experiencing some issues while trying to setup GPG commit signing.

I get the following error while using Pycharm's built in commit tool : 

error: gpg failed to sign the data

However, when using the command:

echo "test" | gpg --clearsign

to enter my gpg key password, Pycharm's commiting tool then works until I repoen Pycharm

My guess is that the Pinentry password prompt doesn't open properly (from the WSL), refusing my commit as the key password is not entered.

Any idea on how to avoir having me to enter the command each time I reopen Pycharm and only have the prompt asked on the first commit ?